Many deposits have been found around the Miaoershan-Yuechengling complex pluton in the west of Nanling metallogenic belt. The complex pluton is composed of an early stage granitoid batholith and late stage small intrusions. To reveal which magmatic event corresponds to mineralization, ore-forming elements content of samples from three geochemical prospecting sections accross Miaoershan early stage granitoid batholith, late stage small intrusions occurred in the early stage granitoid batholith and the contact zone between the complex pluton and strata were analyzed. No positive anomaly of ore forming element (W, Sn, Mo, Cu, Pb, Zn, Ag) distribution have been found at the localities corresponding to the early stage granitoid batholith and its contact zone and positive anomalies of W and Sn, on the other hand, have been found at the localities corresponding to the occurrences of the late stage small intrusions. Based on the distribution of ore-forming element along the three geochemical prospecting sections, together with field observation that the adjacent strata around the early stage batholith did not underwent alteration, it is concluded that the mineralization events in the southwestern part of the Miaoershan-Yuechengling complex pluton are related to late stage magmatic activities and the ore-prospecting target should be constrained to the late stage intrusions occurred in or around the Miaoershan-Yuechengling complex pluton.